Home / 640,413,797.76-883,771,796.48-347,058,365.76

Finding the Fourth Proportional to 640,413,797.76, 883,771,796.48 and 347,058,365.76

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Solution

The fourth proportional to 640,413,797.76, 883,771,796.48 and 347,058,365.76 is: 478,940,954.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,413,797.76 : 883,771,796.48 = 347,058,365.76 : x
  2. Step 2: Convert to fraction form
    640,413,797.76/883,771,796.48 = 347,058,365.76/x
  3. Step 3: Cross multiply
    640,413,797.76x = 883,771,796.48 × 347,058,365.76
  4. Step 4: Simplify right side
    640,413,797.76x = 306,720,395,391,128,128
  5. Step 5: Solve for x
    x = 306,720,395,391,128,128/640,413,797.76
  6. Step 6: Final answer
    x = 478,940,954.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.